/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.cxf.systest.jaxrs.tracing.htrace;

import org.apache.htrace.core.TimelineAnnotation;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeMatcher;

public class IsTimelineEmpty extends TypeSafeMatcher<Iterable<? super TimelineAnnotation>> {
    @Override
    public void describeTo(Description description) {
        description.appendText("timeline is empty");
    }

    @Override
    protected boolean matchesSafely(Iterable<? super TimelineAnnotation> annotations) {
        return annotations == null || !annotations.iterator().hasNext();
    }

    public static IsTimelineEmpty empty() {
        return new IsTimelineEmpty();
    }
}